428238440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{73}}^2$

素因数の和:212

約数の個数: 144

約数和(自身を含む): 1164130380

約数和(自身を除く): 735891940

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 49, 56, 70, 73, 82, 98, 140, 146, 164, 196, 205, 245, 280, 287, 292, 328, 365, 392, 410, 490, 511, 574, 584, 730, 820, 980, 1022, 1148, 1435, 1460, 1640, 1960, 2009, 2044, 2296, 2555, 2870, 2920, 2993, 3577, 4018, 4088, 5110, 5329, 5740, 5986, 7154, 8036, 10045, 10220, 10658, 11480, 11972, 14308, 14965, 16072, 17885, 20090, 20440, 20951, 21316, 23944, 26645, 28616, 29930, 35770, 37303, 40180, 41902, 42632, 53290, 59860, 71540, 74606, 80360, 83804, 104755, 106580, 119720, 143080, 146657, 149212, 167608, 186515, 209510, 213160, 218489, 261121, 293314, 298424, 373030, 419020, 436978, 522242, 586628, 733285, 746060, 838040, 873956, 1044484, 1092445, 1173256, 1305605, 1466570, 1492120, 1529423, 1747912, 2088968, 2184890, 2611210, 2933140, 3058846, 4369780, 5222420, 5866280, 6117692, 7647115, 8739560, 10444840, 10705961, 12235384, 15294230, 21411922, 30588460, 42823844, 53529805, 61176920, 85647688, 107059610, 214119220, 428238440]

約数ペア:

[(1, 428238440), (2, 214119220), (4, 107059610), (5, 85647688), (7, 61176920), (8, 53529805), (10, 42823844), (14, 30588460), (20, 21411922), (28, 15294230), (35, 12235384), (40, 10705961), (41, 10444840), (49, 8739560), (56, 7647115), (70, 6117692), (73, 5866280), (82, 5222420), (98, 4369780), (140, 3058846), (146, 2933140), (164, 2611210), (196, 2184890), (205, 2088968), (245, 1747912), (280, 1529423), (287, 1492120), (292, 1466570), (328, 1305605), (365, 1173256), (392, 1092445), (410, 1044484), (490, 873956), (511, 838040), (574, 746060), (584, 733285), (730, 586628), (820, 522242), (980, 436978), (1022, 419020), (1148, 373030), (1435, 298424), (1460, 293314), (1640, 261121), (1960, 218489), (2009, 213160), (2044, 209510), (2296, 186515), (2555, 167608), (2870, 149212), (2920, 146657), (2993, 143080), (3577, 119720), (4018, 106580), (4088, 104755), (5110, 83804), (5329, 80360), (5740, 74606), (5986, 71540), (7154, 59860), (8036, 53290), (10045, 42632), (10220, 41902), (10658, 40180), (11480, 37303), (11972, 35770), (14308, 29930), (14965, 28616), (16072, 26645), (17885, 23944), (20090, 21316), (20440, 20951)]